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I guess you have this link already, but just for anybody visiting this question:<br />
<a href="http://support.microsoft.com/support/kb/articles/Q234/3/45.ASP" rel="ugc nofollow">http://support.microsoft.com/support/kb/articles/Q234/3/45.ASP</a><br />
<br />
Did you unregister COMCAT.dll version 5 before install version 4.71 ?
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I guess you have this link already, but just for anybody visiting this question:
http://support.microsoft.com/support/kb/articles/Q234/3/45.ASP [http://support.microsoft.com/support/kb/articles/Q234/3/45.ASP]

Did you unregister COMCAT.dll version 5 before install version 4.71 ?

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No comment has been added lately, so it's time to clean up this TA.<br />
I will leave a recommendation in the Cleanup topic area that this question is:<br />
PAQ'd and pts removed<br />
Please leave any comments here within the next seven days.<br />
&nbsp;<br />
PLEASE DO NOT ACCEPT THIS COMMENT AS AN ANSWER!<br />
&nbsp;<br />
Venci75<br />
EE Cleanup Volunteer
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No comment has been added lately, so it's time to clean up this TA.
I will leave a recommendation in the Cleanup topic area that this question is:
PAQ'd and pts removed
Please leave any comments here within the next seven days.
 
PLEASE DO NOT ACCEPT THIS COMMENT AS AN ANSWER!
 
Venci75
EE Cleanup Volunteer

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<div class="content wysiwyg-content">
When I select form designer in visual j++ 6, I receive following error:<br />
<br />
Microsoft Development Environment java.lang.IllegalAccessErr<wbr />or: com/ms/wfc/util/Debug$Swit<wbr />ch<br />
<br />
I changed COMCAT.dll from version 5 to version 4.71, but my problem not corrected.<br />
<br />
I used the following help of Microsoft but I couldn't <br />
correct the error:<br />
PRB: Forms Designer Fails or Not Working Correctly (Q234345)<br />
<br />
My platform is Windows Me and Visual J++ not trial version.<br />

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When I select form designer in visual j++ 6, I receive following error:

Microsoft Development Environment java.lang.IllegalAccessError: com/ms/wfc/util/Debug$Switch

I changed COMCAT.dll from version 5 to version 4.71, but my problem not corrected.

I used the following help of Microsoft but I couldn't 
correct the error:
PRB: Forms Designer Fails or Not Working Correctly (Q234345)

My platform is Windows Me and Visual J++ not trial version.


Forms Designer Fails  

Java is a platform-independent, object-oriented programming language and run-time environment, designed to have as few implementation dependencies as possible such that developers can write one set of code across all platforms using libraries. Most devices will not run Java natively, and require a run-time component to be installed in order to execute a Java program.